Just got the game on Steam, I tried the demo beforehand and it worked fine. Full version boots to the menu but when trying to click the tutorial it tells me its loading but never starts up. Trying join a game comes up with infinitely being told its retrieving the server list and creating my own single-player game has a blank screen with the Public/Alliance chat bar at the bottom.

I'm only using Windows Firewall, which allows DEFCON as an exception, turning the firewall off did nothing. I've tried port-forwarding alongside having the option for PF enabled in the game options, no luck. Here's my debug.txt: